Thomas patten



(No'ModeL) T. PATTEN, Jr., 8v C. ANDERSON.

PUMP. No. 349,951. Patented Sept. 28, 1886.

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nl nesses j# f77/f UNITED STATES PATENT OFFICE.

THOMAS PATTEN, JR., AND CHRTSTIAN ANDERSON, OF APPLETON, VIS.

PUMP.

SPECIFICATION forming part of Letters Patent No. 349,951, datedSeptember 28, 182m.

Application tiled January .'20, 1336. Serial No. llllls. (No model.)

To all whom it may concern:

Be it known that we, THoM'As PATTEN, Jr., and (JHRis'rL-tu ANDERsoN,citizens ot' the United States, residing at Appleton, in the county ofOutagamie and State ot' Wisconsin, have invented a new and usefulImprovement in Pumps, of which the following is a specilication.

Our invention relates to that class oi' pumps which are designed l'oruse in paper-mills for pumping the liquid pulp from one receptacle toanother, and are termed stuff-pumps,7 but may be advantagcously used fora variety of purposes.

The object of our improvement is to produce a greater and more even iowof the liquid or st-uff, and thereby produce paper of even thickness anduniform weight throughout the entire "'batch7 or quantity desi red;also, to produce a pump that is durable in use, its wear being uniformin the valve and seat, whereby it is kept tight and t'rce l'rom leakage;and', furthermore, ol' such construction as will permit access to itsparts t'or the purpose ol' removing obstructions and l'or making theneeded repairs. \Ve attain these objects in the manner shown in theaccompanying drawings, in whichq Figure l is a vertical elevation,partly in section, of the pump upon the line a: ./1: of Fig. 3. Fig. 2is a vertical elevation ofthe pumpcylinder and valve-chambers; and Fig.S is a top view upon the line ol' Fig. 2, showing the valve d in itschamber, the valve-guides c, the handhole plate h., and the clamp lbywhich it is seemed in its position.

Similar letters refer to similar parts in the several views.

A is a post of wood, to which the pump is secured by bolts. B is thepump-cylinder. C is its piston.

D D are the valvechambers. el d are globevalves. E is the piston-rod,and F the conneetion-rod, by which the piston is given a reciprocatingmotion by a crank or other-suitable device.

a a are feet cast with the pump, by which it is secured to the post Awith bolts, as shown.

In the upper end of the cylinder B is a gland, l), for the retention ofpacking around the piston, in the usual manner.

\Vithin the valve chambers are guides c and c', b v which the valves land l/ are guided in their vertical movement, and made to fall squarelyinto their seat and make an immediate and perl'ectjoint. These guides cand c' are cast with the valve-chambers, ample room being left betweensaid guides l'or the i'ree passage of both the valves and the liquid itis desired to elevate.

c is the suctioupipe, and f the dischargepipe.

h l1. are handhole plates, which are secured in place upon thevalve-chambers by the clamp and bolts l. f/, the removal ot' the platesgiving access te the valve and its chamber for repairs thereto, and forthe removal ol' obstructions which may lind lodgmcnt therein.

The cylinder l2, valve-chamber D', supply and discharge pipes, &c., arel'ormed in separate pieces, and screwed or bolted together, both t'ortheir easy construction and repairs.

Its operation is not unlike that ol' pumps which have been long in use..lhe raising of the piston exhausts the ai r from the chamber, the valvedis raised, and the pulp or liquid enters. Upon the return of the pistonthe valve l is closed, the valve d opened, and the liquid forced up anddelivered through the pipef to the place required. The valve-chambersare located in close proximity one to the other, unlike those formerlyused for this purpose in paper-mills, whereby the smallest amount ofliquid is accumulated under the valve d', and subjected to the suctionof the piston on its upward stroke, thereby producing the smallestvariation in the amount ol' liquid elevated at the severalrcciprocations of the piston.

Having thus described our invention, what we claim, and desire to secureby Letters Patent, is-

l. In a force-pump, the combination of the cylinder B, thevalve-chambers D and B', the plunger or piston C, the globe-valvesd andd', their seats, and the .valve-guides c and c', the latter formedintegral with the chambers l) and D, respectively, substantially asshown and described.

2. In a force-pump, the combination of a IOC cylinder, a plunger orpiston adapted to be access to said valve-chambers, substantiallyasreciprocated therein, two valve-chambers-in seb forth.

close-proximiby one to the other, having each THOMAS PATTEN, JR.

a. globe-valve, guides therefor integral with CHRISTIAN ANDERSON. 5 said chambers for guiding the vertical move- Vibnesses:

ment of said valves, seats therefor, and the JOHN MCNAUGHTON,

removable cover and hand-holes for giving GEo. A. WILLIS.

